Does God's Anger Last Forever?

Although the sons of Korah recognized that God had turned away from His wrath as He had shown it through the Babylonians, Israel still needed the consequences of God’s anger taken away that the nation might enjoy its previous glory. Therefore, the sons of Korah prayed,
Restore us, O God of our salvation,
And cause Your anger toward us to cease.
Will You be angry with us forever?
Will You prolong Your anger to all generations?
Will You not revive us again,
That Your people may rejoice in You?
Show us Your mercy, LORD,
And grant us Your salvation.
(Psalms 85:4-7)
Have you suffered for your sin? Have you also repented of that sin? If so, pray to God the prayer of the sons of Korah, adapting it for your situation.